she was found near the 2300 block of boston's st. in the water. first responders took her to an area hospital where she rose pronounced dead three hours later. the cause of death is still under investigation. her profile on linked in shows she has been an assistant professor at johns hopkins since 1994. >> a new study shows to much air pollution may make your head foggy. research years in california analyzed data on 15,000 older adults in areas with high particulate matter in the air. they did worse on cognitive studies. this is the first large study to show an association with brain function. as you plan your winter vacation, do not forget to pack a helmet. a new review of research confirms using a helmet when skiing and snowboarding decreases the risk and severity of head injuries. doctors say some complain it reduces visibility and may create a false sense of security. their studies find most severe head injuries on the slopes happened when skiers were not wearing helmets. a preliminary study suggesting eating more fish could help to reduce the